In recent years, pressure has been placed on asphalt shingle
manufacturers to upgrade their products' performance in all areas.
This pressure has come primarily from insurance companies,
municipalities and other agencies such as Factory Mutual,
Underwriters Laboratories (UL) Inc. and Florida's Miami-Dade
In particular, asphalt shingles' high-wind resistance has taken
on added importance in the roofing industry to meet more stringent
uplift requirements. In response to this, roofing material
manufacturers have made changes to their designs, raw materials,
application methods, adhesives used to bond laminates used in
individual dimensional shingles and adhesives used to seal shingles
to shingles for more wind-resistant roof systems.
High-wind-resistant shingles use a combination of design
features and special attachment procedures.
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